Magazine for storing an information tape

ABSTRACT

A magazine is provided for storing an information tape. The tape is wound on two spaced-apart spools and is a plastic film which has elastic recovery to provide a spring-like action on the spools. The spools are driven in a positive manner by a series of gears which connect one spool to the other spool. Long lengths of tape can be wound on the spools and freely rotated from one end to another without bunching, sagging or jamming. A pin extends outwardly from one of the gears parallel to the spool axis and is engagable in a radially extending slot of a magazine drive plate mounted on a micrometer housing. A leaf spring extends from the magazine and is engagable with a lip on the micrometer housing to lock the magazine in the micrometer.

United States Patent [191 Morgan MAGAZINE FOR STORING AN INFORMATION TAPE [75] Inventor: Paul A. Morgan, Chicago, Ill.

[73] Assignee: Century Wheels, Inc., Lake Bluff,'

Ill.

[22] Filed: Sept. 18, 1973 [21] Appl. No.: 398,461

Related US. Application Data [63] Continuation-impart of Ser. Nosv 295,225, Oct. 5, 1972, Pat. No. 3,845,564, and Ser. No. 238,340, March 27, 1972, Pat. No. 3,810,310.

[52] US. Cl. 242/712,, 40/86 R, 242/673 R [51] Int. Cl G031) l/04, G09f 11/24 [58] Field of Search 242/712, 74, 67.3 R;

[56] References Cited UNITED STATES PATENTS 986,046 3/1911 Crelman 40/86 R [451 Mar. 18, 1975 2,045,249 6/1936 Petersen 242/673 R 2,610,904 9/1952 Owens 242/712 R 3,759,433 9/1973 Gerber 242/673 R Primary Examiner-Edward J. MlcCarthy Attorney, Agent, or Firm--Spencer & Kaye [57] ABSTRACT A magazine is provided for storing an information tape. The tape is wound on two spaced-apart spools and is a plastic film which has elastic recovery to provide a spring-like action on the spools. The spools are driven in a positive manner by a series of gears which connect one spool to the other spool. Long lengths of tape can be wound on the spools and freely rotated from one end to another without bunching, sagging or jamming. A pin extends outwardly from one of the gears parallel to the spool axis and is engagable in a radially extending slot of a magazine drive plate mounted on a micrometer housing. A leaf spring extends from the magazine and is engagable with a lip on the micrometer housing to lock the magazine in the micrometer.

32 Claims, 8 Drawing Figures 1,189,309 7/1916 Taylor 1,367,790 2/1921 White 1,565,703 12/1925 Berman ..40/86R MAGAZINE FOR STORING AN INFORMATION TAPE BACKGROUND OF THE INVENTION This application is a continuation-in-part of my pending U.S. Application Ser. No. 295,225, filed Oct. 5, 1972 now U.S. Pat. No. 3,845,564 and entitled Micrometer with Movable Anvil," and is a continuationin-part of my copending U.S. application Ser. No. 238,340, filed Mar. 27, 1972 now U.S. Pat. No. 3,810,3land entitled Micrometer Measuring Device. U.S. application Ser. No. 295,225 is a continuation-in-part of U.S. application Ser. No. 238,340 and both of these applications are hereby incorporated by reference.

This invention relates to a magazine having an information tape, and more particularly to a magazine that can be used with a micrometer measuring device.

In the past, when long lengths of tape have been wound on spaced-apart spools in a magazine there often has been a tendency for the tape to sag, bunch up, or jam upon rotation of the tape from one end to another on these spools. The present invention relates to a magazine that overcomes this problem. Further, the present invention is directed to a magazine that can be easily inserted into a housing such as a micrometer housing and firmly locked in place in the housing, but which can be easily removed whenever desired. The magazine is especially useful in micrometers of the type described in the above referred to pending U.S. Applications.

SUMMARY OF THE INVENTION In accordance with the present invention, a magazine is provided which comprises a frame, first and second spaced-apart rotatable spools mounted on the frame, a tape wound on the spools, the tape being a plastic film having elastic recovery to provide a spring-like action on the spools, a first rotatable member attached to one of the spools, a second rotatable member attached to the other of the spools, and a connecting means connecting the rotatable members to transmit rotary motion from the first rotatable member to the second rotatable member and thereby drive the spools.

Preferably, a pin extends from one of the rotatable members and connecting means and is parallel to the axis of the spools. The pin is engagable in a radially extending slot ofa magazine drive plate on a micrometer. Preferably, the connecting means comprises a plurality of gears and the pin is attached to one of the gears. It is also preferred that the magazine include a locking means in the form ofa leaf spring secured to the frame of the magazine, with the leaf spring being engagable with a lip on the micrometer to lock the magazine in the micrometer. The leaf spring is depressable to enable it to clear the lip and permit the magazine to be removed from the micrometer. Preferably, the spools each contain a slot for receiving one end of the tape, with the slot opening into a keeper wire receiving recess at one of its ends. Each end of the tape is preferably folded to twice its thickness and positioned in the slot ofa spool, and a tape keeper wire is positioned between the two thicknesses and seated in the keeper wire receiving recess.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory, but are not restrictive of the invention.

DETAILED DESCRIPTION OF THE INVENTION The accompanying drawings illustrate an example of a preferred embodiment of the invention and, together with the description, serve to explain the principles of the invention. Of the Drawings:

FIG. 1 is a perspective view of a magazine constructed in accordance with the teachings of this invention and positioned in a micrometer;

FIG. 2 is a perspective view of the magazine shown in FIG. 1;

FIG. 3 is an end elevational view of the top end of the magazine of FIG. 2;

FIG. 4 is a side elevational view of the left side of the magazine shown in FIG. 2;

FIG. 5 is a horizontal sectional view taken along lines 55 FIG. 4;

FIG. 6 is a partial perspective view showing a me ferred attachment of a tape to the spools of the magazine of FIG. 2;

FIG. 7 is a partial perspective view of a portion of a micrometer housing for receiving the magazine and showing a means for driving the magazine;

FIG. 8 is an alternate embodiment of a magazine constructed in accordance with the present invention.

Referring to FIG. I, the present invention is embodied in a magazine, generally It). used with a micrometer, generally 12, for measuring the thickness ofa rotor, generally 14 of a disc braking system. The micrometer includes a frame generally 16, comprising a spindle mounting section, generally 18, in. the form of a housing, and an anvil mounting section, generally 20, connected to the spindle mounting section. As best seen in FIG. 1, spindle mounting section 18 includes a first sidewall 22, an opposing second sidewall 24, a front wall 28, and a back wall 30. The bottom of spindle mounting section 18 is open so that magazine 10 can be inserted in the spindle mounting section and removed therefrom. Magazine 10 is mounted between sidewalls 22 and 24 of spindle mounting section 18 and the walls of the spindle mounting section completely enclose it. The bottom of magazine 10 is substantially flush with the bottom of spindle mounting section 18.

As best seen in FIGS. 2, 3, 4, and 5, magazine 10 is generally rectangular in cross section and includes a frame comprised of a front first section, generally 30, and a substantially identical mating rear second section 31 which together form the walls of magazine 10. The first and second sections 30 and 31 preferably are made of a molded hard synthetic plastic material such as a Lucite acrylic resin, and are joined together at their mating edges by conventional means such as glue, adhesive or heat-sealing.

Magazine 10 includes a bottom wall 32, a top wall 34, a back wall 36, a front wall 38, a first sidewall 40, a second sidewall 42 and a retaining sidewall 44. Second sidewall 42 extends from bottom wall 32 toward top wall 34, and terminates approximately midway be tween the bottom wall and top wall. Retaining sidewall 44 is parallel to second sidewall 44 and extends from bottom wall 32 to top wall 34. Retaining sidewall 44 is spaced inwardly from and closely adjacent to second sidewall 42 and forms an opening therewith.

A stop wall 46 is parallel to and closely adjacent bottom wall 32 and as best seen in FIG. 5 extends from first sidewall 40 to retaining sidewall 44. As best seenin FIG. 5, stop wall 46, top wall 34, first sidewall 40 and retaining sidewall 44, together with top wall 38 and back wall 36 define a chamber which completely encloses and houses an information tape 48. Bottom wall 32 contains first and second circular openings 50 and 52 which provide a hand grip for grasping magazine so that it can be inserted into or removed from the open bottom of spindle mounting section 18 of micrometer 12.

The plastic material of magazine 10 is preferably opague and front wall 38 of the magazine as best seen in FIGS. 1 and 2 includes a generally rectangular opening 39 to enable information tape 48 to be viewed from the front of the magazine. As best seen in FIGS. 4 and 5, tape 48 is wound on two spaced-apart spools 54 and 56 that are journaled for rotation in magazine 10. Each spool 54 and 56 contains a drive shaft 58 which is journaled in retaining wall 44 and a drive shaft 60 which is journaled in first sidewall 40.

In accordance with the invention, a first rotatable member is attached to one of the spools and a second rotatable member is attached to the other of the spools. As here embodied, a first rotatable member in the form of a drive gear 62 is secured to drive shaft 58 of spool 54 externally of retaining sidewall 44. Similarly, a second rotatable member in the form of a drive gear 64 is secured to drive shaft 58 of spool 60 between retaining wall 44 and second sidewall 42.

In accordance with the invention, a connecting means in the form ofa least one third rotatable member connects the rotatable members to transmit rotary motion from the first rotatable member to the second rotatable member and thereby drive said spools. As here embodied, a series of intermediate drive gears 66, 68 and 70 mounted externally of retaining wall 44 connect drive gears 62 and 64 so that rotation of drive gear 62 produces a corresponding rotation of drive gear 64 and of spools 54 and 56. Gears 66, 68 and 70 are mounted on drive shafts 67, 69 and 71, respectively, which are journaled for rotation in first sidewall 40 and retaining sidewall 44. Drive gears 68 and 70 are identical to each other and to gears 62 and 64 and are captured between retaining sidewall 44 and second sidewall 42. Drive gear 66 is larger than gears 68 and 70 and is mounted above the end of second sidewall 42. A C-clip 73 is positioned in a groove in drive shaft 67 closely adjacent to retaining wall 44 to maintain drive gear 66 and drive shaft 67 in magazine 10. Spools 54 and 56 are thus connected to each other by a positive drive means so that rotation of one of the spools produces an equal and corresponding rotation of the other. The provision of a positive drive for both spools aids in obtaining an even drive to tape 48.

As will be apparent to those skilled in the art, other means can be used to provide a positive drive, such as, for example, a bead chain, sprocket chain or ladder chain and appropriate rotatable members for these chains. For example, as shown in FIG. 8, two rotatable members 75 and 77 of a magazine 79 are positively connected to each other by a drive band 81. In the embodiment of FIG. 8, the front wall 83 of magazine 79 is transparent to enable the information tape in it to be easily viewed.

Tape 48 is divided longitudinally into sections, with each section listing a car model, car year, and discard thickness" for the disc brake rotor for that car. Each section of tape 48 is in alphabetical order so that the discard thickness for a particular car can easily be determined by rotating the tape until the desired section appears in opening 39 of front wall 38 of magazine 10. Front wall 28 of spindle mounting section 18 of micrometer 12, as seen in FIG. 1, has a window 87 that contains a clear plastic and is aligned with opening 39 in front wall 38 of magazine 10 to enable tape 48 to be viewed when the magazine is in micrometer 12. The disc brake rotor size is then determined by miking the rotor, and this size is compared to the discard thickness indicated on the magazine. If the actual micrometer size is larger than the discard thickness, the rotor can still be used, but if it is smaller, the rotor is unsafe and should be discarded and replaced. Upon introduction of a new model year, magazine 10 can be removed, and replaced with a new magazine having a new tape with the revised information for the new model year. In the embodiment of FIG. 8, window 87 of micrometer 12 would permit only one section of tape 48 to be viewed.

The length of tape 48 needed for storing all of the information necessary in readily viewable size to determine the thicknesses of rotors for all of the various years, makes and models of cars is approximately 6 feet and preferably 10 feet. This length of tape cannot be be easily wound on spaced-apart spools and be freely rotated from one end to another on these spools in a magazine without having the tape sag, bunch up, or jam.

In accordance with the present invention, tape 48 is made of a plastic film having elastic recovery so that a spring-like action is provided on the magazine spools which together with the direct drive of both spools enables 6 to 10 feet of tape to evenly move from one spool to another without any winding problems. Suitable tapes for this purpose can be made of any plastic film which is resilient and exhibits elastic recovery. Thus, differentially stressed spring-like plastic films of, for example, polyethylene terephthalate (sold under the trademark Mylar by duPont Company) polyamides (e.g. nylon), polyacrylonitrile, and copolymers of acrylonitrile with other vinyl compounds, copolymers of vinyl chloride and vinylidene chloride, and polyhydrocarbons (e.g. polyethylene and polypropylene) can be used in making tape 48.

It will be apparent to those skilled in the art that the micrometer can be used to measure workpieces other than disc brake rotors without departing from the scope of this invention. Accordingly, the information on tape 48 can be tailored for use with other systems where it is important to have a readily available source of indicating measurements.

In accordance with a preferred embodiment of the invention, the ends of tape 48 are preferably secured to spools 54 and 56 in the manner shown in FIGS. 5 and 6. As seen in FIGS. 5 and 6, each spool 54 and 56 is provided with a slot 72 running through a diameter of the spool. Slot 72 opens into a keeper wire receiving recess 74 at one of its ends. To attach tape 48 to, for example, spool 56, one end of the tape is folded to twice its thickness and this end is then inserted into slot 72 at the end of the spool opposite that of recess 74 until it extends past the recess as shown in FIG. 6. The two thicknesses are slightly separated and a tape keeper wire 76 is inserted between them. The closed, thickened tape end is then pulled back toward spool 56 until keeper wire 76 is firmly positioned in recess 74. Spool 56 is then turned to wind substantially all of tape 48 on the spool. When the other end of the tape is reached, it is inserted in spool 54 in the same manner as just described. The ends of the tape are now firmly positioned on spools 54 and 56 and they can be rotated in either direction without disattachment.

ln winding the tape on spool 56, it is important to wind substantially all of the tape on one spool before winding any of the tape on the spool 84 in order to obtain the benefit of the elastic recovery provided by the preferred tapes of this invention. The resilient nature of tape 48 tends to force it against front wall 38 of magazine so that the plane of the tape is parallel to the plane of front wall 38. Tape 48 thus tends to ride against front wall 38. The resilient nature of tape 48 also permits the rotating force of drive gears 62 and 64 to be transmitted to the tape without any lost motion so that the tape immediately responds to rotation of drive gears 62 and 64 in an even manner.

In accordance with a preferred embodiment of the invention, a pin extends from one of the rotatable members and connecting means. The pin is parallel to the axes of the spools and is engagable in a radially extending slot of a magazine drive plate on the micrometer. As here embodied, a straight pin 78 is attached off center to drive gear 66 and is parallel to the axes of spools 54 and 56. Pin 78 aids in inserting magazine 18 into spindle mounting section 18 and connecting it to drive means. As best seen in FIG. 1, the magazine drive means includes a magazine drive plate, generally 80, which opposes drive gear 66 of magazine 18.

A rotatable control knob 82 is mounted externally of spindle mounting section 18 in alignment with drive gear 66. Control knob 82 has a shaft (not shown) which extends through wall 22 of spindle mounting section 18 and magazine drive plate 80 is fixed to this shaft internally of wall 22. Drive plate 80 has at least one radially extending slot 84, as best seen in FIGS. 1 and 7, which begins at its outer edge and when magazine 10 is in operative position in spindle mounting section 18, pin 78 is engaged in one of these slots. Rotation of control knob 82 causes drive plate 80 to rotate and because pin 78 is engaged in a slot 84 of the drive plate, drive gear 66 will also rotate. This rotation of drive gear 66 produces a corresponding rotation of spools 54 and 56 thereby moving tape 48. Magazine 10 can be inserted into spindle mounting section 18 and connected to magazine drive plate 80 by having pin 78 engage slot 84. If magazine drive plate 80 is not in a position where one of its slots 84 is aligned with pin 78, it can be rotated by control knob 82, to bring one of its slots 84 into aligned position with pin 78. The termination of second outside wall 42 between top wall 34 and bottom wall 32 of magazine 10 permits pin 78 to rotate with drive gear 66 and be connected to magazine drive plate 80. In the embodiment of FIG. 8, a pin 85 is connected to rotatable member 75.

In accordance with a preferred embodiment of the invention. locking means are provided on the magazine to lock it into position in spindle mounting section 18. As here embodied, and as best shown in FIGS. 1, 2 and 5, this means comprises a flat leaf spring, generally 86, that is captured in a longitudinally extending recess in and thus secured to outside wall 42 of magazine 10. Leaf spring 86 comprises an anchor leg 88 (FIG. 5) captured in outside wall 42, and a downwardly extending locking leg 90 that is angled away from outside wall 42 and toward sidewall 22 of spindle mounting section l8. Sidewall 22 has an inner lip 9.2 (FIG. 1) and when magazine 10 is inserted far enough into spindle mounting section 18, locking leg of leaf spring 86 engages this lip and prevents the magazine from being removed from the spindle mounting section. Top wall 34 of magazine l0 abuts against a stop (not shown) in spindle mounting section 18 when locking leg 90 engages lip 92 to prevent movement of the magazine within spindle mounting section 18. A keyway 94, illustrated in FIG. 1, is provided in sidewall 22 adjacent the locked position of leaf spring 86. When it is desired to remove magazine 10 from spindle mounting section 118, a key such as a house key or car key, is inserted into keyway 94 to depress locking leg 90 clear from lip 92. While locking leg 98 is depressed, magazine It) can be grasped by bottom wall 32 and removed from spindle mounting section 18. When inserting magazine 10 into spindle mounting section 18 locking leg 90 cannot lock into lip 92 until connecting pin 78 engages in magazine drive plate 88.

The invention in its broader aspects is not limited to the specific details shown and described and departures may be made from such details without departing from the principles of the invention and without sacrificing its chief advantages.

What is claimed is:

1. A magazine insertable into and removable from a housing comprising: a frame, first and second spacedapart rotatable spools mounted on said frame, a tape wound on said spools, a first rotatable member attached to one of said spools, a second rotatable member attached to the other of said spools, a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools, and a locking means in the form of a resilient means secured to the frame of the magazine for locking the magazine in the housing.

2. The magazine of claim 1 wherein a pin extends from one of said rotatable member, said pin being parallel to the axes of said spools, offset from the axis of rotation of the rotatable member from which it extends and engageable in a radially extending slot of a rotatable drive plate mounted on the [housing so that rotation of the drive plate produces a corresponding rotation of the pin, rotatable members, spools and tape.

3. The magazine of claim 1 wherein said connecting means is an endless drive band.

4. The magazine of claim 2 wherein said connecting means comprises at least one gear.

5. The magazine of claim 4 wherein said pin extends from said gear.

6. The magazine of claim 1 wherein said frame includes a front wall overlying said tape, with the plane of said tape being parallel to the plane of said front wall and said tape riding against said front wall.

7. The magazine of claim 6 wherein said front wall includes an opening to permit a section of said tape to be viewed.

8. The magazine of claim 2 wherein the connecting means comprises a plurality of gears and the pin is attached to one of the gears.

9. The magazine of claim 1 wherein said resilient means is a leaf spring secured to the frame of the magazine.

10. The magazine of claim 9 wherein said leaf spring includes an anchor leg secured to said frame and a locking leg that is angled away from said frame.

11. The magazine of claim 1 wherein each spool contains a slot for receiving one end of the tape, with the slot opening into a keeper wire receiving recess at one of its ends, each end of said tape is folded to twice its thickness and positioned in the slot ofa spool, and each end of the tape has a tape keeper wire positioned between its two thicknesses and seated in the keeper wire receiving recess.

12. The magazine of claim 1 including means on said frame to grip the magazine.

13. The magazine of claim 9 wherein a pin extends from one of said rotatable members, said pin being parallel to the axes of said spools and offset from the axis of rotation of the rotatable member from which it extends and engageable in a radially extending slot of a drive plate of the housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.

14. The magazine of claim 13 wherein the connecting means comprises a plurality of gears and the pin is attached to one of the gears.

15. The magazine of claim 1 wherein said tape is a plastic film having elastic recovery to provide a springlike action on said spools.

16. A magazine comprising: a frame, first and second spaced-apart rotatable spools mounted on said frame, a tape wound on said spools, said spools each containing a slot for receiving one end of the tape, with the slot opening into a keeper wire receiving recess at one of its ends, each end of said tape being folded to twice its thickness and positioned in the slot of a spool, a tape keeper wire positioned between the two thicknesses of the tape at each end of the tape and seated in the keeper wire receiving recess, a first rotatable member attached to one of said spools, a second rotatable member attached to the other of said spools, and a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools.

17. The magazine of claim 16 wherein a pin extends from one of said rotatable members, said pin being parallel to the axes of said spools, offset from the axis of rotation of the member from which it extends and engageable in a radially extending slot of a drive plate mounted on a housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.

18. The magazine of claim 16 including a licking means in the form of a leaf spring secured to the frame of the magazine for locking the magazine in a housing.

19. A magazine for insertion into and removal from a housing having a rotatable drive plate containing a radially extending slot comprising: a frame, first and second spaced-apart rotatable spools mounted on said frame, a tape wound on said spools, a first rotatable member coaxially attached to one of said spools, a second rotatable member coaxially attached to the other of said spools, a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools, a pin extending from one of said rotatable members, said pin being parallel to the axes of said spools and offset from the axis of rotation of the member from which it extends and engageable in the radially extending slot of a rotatable drive plate mounted in the housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.

20. The magazine of claim 19 wherein said connecting means is an endless drive band and said pin extends from one of said first and second rotatable members.

21. The magazine of claim 19 wherein said connecting means comprises at least one gear.

22. The magazine of claim 21 wherein said pin extends from said gear.

23. The magazine of claim 19 wherein the connecting means comprises a plurality of gears and the pin is attached to one of the gears.

24. The magazine of claim 19 including a locking means in the form of a leaf spring secured to the frame of the magazine for locking the magazine in a housing, said leaf spring including an anchor leg secured to said frame and a locking leg that is angled away from said frame.

25. A device comprising:

a housing having an opening on one side for receiving a magazine, said housing including a rotatable drive plate mounted on the inside of a wall of said housing, said drive plate having a radially extending slot; and

a removable magazine slidable into and out of the housing opening, said magazine comprising a frame, first and second spaced apart rotatable spools mounted on said frame, a tape wound on said spools, a first rotatable member coaxially attached to one of said spools, a second rotatable member coaxially attached to the other of said spools, a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools, a pin extending from one of said rotatable members, said pin being parallel to the axes of said spools and offset from the axis of rotation of the member from which it extends and engaged in the radially extending slot of the rotatable drive plate mounted in the housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.

26. The device of claim 25 including a locking means in the form of a resilient means secured to the frame of the magazine for locking the magazine in the housing.

27. The device of claim 26 wherein the wall of the housing includes a lip which engages the locking means and prevents the magazine from being removed from the housing.

28. The device of claim 27 wherein the locking means is a leaf spring.

29. The device of claim 27 wherein the wall includes an opening aligned with the locking means, said opening permitting a key to be inserted into the housing to depress the locking means clear of said lip and enable the magazine to be moved from the housing.

30. The device of claim 28 including a stop on said housing which engages the magazine when the locking 32. The device of claim 31 wherein the rotatable member from which the pin extends is aligned with the control knob. 

1. A magazine insertable into and removable from a housing comprising: a frame, first and second spaced-apart rotatable spools mounted on said frame, a tape wound on said spools, a first rotatable member attached to one of said spools, a second rotatable member attached to the other of said spools, a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools, and a locking means in the form of a resilient means secured to the frame of the magazine for locking the magazine in the housing.
 2. The magazine of claim 1 wherein a pin extends from one of said rotatable member, said pin being parallel to the axes of said spools, offset from the axis of rotation of the rotatable member from which it extends and engageable in a radially extending slot of a rotatable drive plate mounted on the housing so that rotation of the drive plate produces a corresponding rotation of the pin, rotatable members, spools and tape.
 3. The magazine of claim 1 wherein said connecting means is an endless drive band.
 4. The magazine of claim 2 wherein said connecting means comprises at least one gear.
 5. The magazine of claim 4 wherein said pin extends from said gear.
 6. The magazine of claim 1 wherein said frame includes a front wall overlying said tape, with the plane of said tape being parallel to the plane of said front wall and said tape riding against said front wall.
 7. The magazine of claim 6 wherein said front wall includes an opening to permit a section of said tape to be viewed.
 8. The magazine of claim 2 wherein the connecting means comprises a plurality of gears and the pin is attached to one of the gears.
 9. The magazine of claim 1 wherein said resilient means is a leaf spring secured to the frame of the magazine.
 10. The magazine of claim 9 wherein said leaf spring includes an anchor leg secured to said frame and a locking leg that is angled away from said frame.
 11. The magazine of claim 1 wherein each spool contains a slot for receiving one end of the tape, with the slot opening into a keeper wire receiving recess at one of its ends, each end of said tape is folded to twice its thickness and positioned in the slot of a spool, and each end of the tape has a tape keeper wire positioned between its two thicknesses and seated in the keeper wire receiving recess.
 12. The magazine of claim 1 including means on said frame to grip the magazine.
 13. The magazine of claim 9 wherein a pin extends from one of said rotatable members, said pin being parallel to the axes of said spools and offset from the axis of rotation of the rotatable member from which it extends and engageable in a radially extending slot of a drive plate of the housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.
 14. The magazine of claim 13 wherein the connecting means comprises a plurality of gears and the pin is attached to one of the gears.
 15. The magazine of claim 1 wherein said tape is a plastic film having elastic recovery to provide a spring-like action on said spools.
 16. A magazine comprising: a frame, first and second spaced-apart rotatable spools mounted on said frame, a tape wound on said spools, said spools each containing a slot for receiving one end of the tape, with the slot opening into a keeper wire receiving recess at one of its ends, each end of said tape being folded to twice its thickness and positioned in the slot of a spool, a tape keeper wire positioned between the two thicknesses of the tape at each end of the tape and seated in the keeper wire receiving recess, a first rotatable member attached to one of said spools, a second rotatable member attached to the other of said spools, and a connecting means in the form of at least one third rotatable member connectIng said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools.
 17. The magazine of claim 16 wherein a pin extends from one of said rotatable members, said pin being parallel to the axes of said spools, offset from the axis of rotation of the member from which it extends and engageable in a radially extending slot of a drive plate mounted on a housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.
 18. The magazine of claim 16 including a licking means in the form of a leaf spring secured to the frame of the magazine for locking the magazine in a housing.
 19. A magazine for insertion into and removal from a housing having a rotatable drive plate containing a radially extending slot comprising: a frame, first and second spaced-apart rotatable spools mounted on said frame, a tape wound on said spools, a first rotatable member coaxially attached to one of said spools, a second rotatable member coaxially attached to the other of said spools, a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools, a pin extending from one of said rotatable members, said pin being parallel to the axes of said spools and offset from the axis of rotation of the member from which it extends and engageable in the radially extending slot of a rotatable drive plate mounted in the housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.
 20. The magazine of claim 19 wherein said connecting means is an endless drive band and said pin extends from one of said first and second rotatable members.
 21. The magazine of claim 19 wherein said connecting means comprises at least one gear.
 22. The magazine of claim 21 wherein said pin extends from said gear.
 23. The magazine of claim 19 wherein the connecting means comprises a plurality of gears and the pin is attached to one of the gears.
 24. The magazine of claim 19 including a locking means in the form of a leaf spring secured to the frame of the magazine for locking the magazine in a housing, said leaf spring including an anchor leg secured to said frame and a locking leg that is angled away from said frame.
 25. A device comprising: a housing having an opening on one side for receiving a magazine, said housing including a rotatable drive plate mounted on the inside of a wall of said housing, said drive plate having a radially extending slot; and a removable magazine slidable into and out of the housing opening, said magazine comprising a frame, first and second spaced apart rotatable spools mounted on said frame, a tape wound on said spools, a first rotatable member coaxially attached to one of said spools, a second rotatable member coaxially attached to the other of said spools, a connecting means in the form of at least one third rotatable member connecting said first and second rotatable members to transmit rotary motion from said first rotatable member to said second rotatable member and thereby drive said spools, a pin extending from one of said rotatable members, said pin being parallel to the axes of said spools and offset from the axis of rotation of the member from which it extends and engaged in the radially extending slot of the rotatable drive plate mounted in the housing so that rotation of the drive plate produces a corresponding rotation of said pin, rotatable members, spools and tape.
 26. The device of claim 25 including a locking means in the form of a resilient means secured to the frame of the magazine for locking the magazine in the housing.
 27. The device of claim 26 wherein the wall of the housing includes a lip which engages the locking means and prevents the magazine from beIng removed from the housing.
 28. The device of claim 27 wherein the locking means is a leaf spring.
 29. The device of claim 27 wherein the wall includes an opening aligned with the locking means, said opening permitting a key to be inserted into the housing to depress the locking means clear of said lip and enable the magazine to be moved from the housing.
 30. The device of claim 28 including a stop on said housing which engages the magazine when the locking means engages the lip to prevent movement of the magazine within the housing.
 31. The device of claim 25 including a control knob on the outside of the housing for rotating the drive plate.
 32. The device of claim 31 wherein the rotatable member from which the pin extends is aligned with the control knob. 